Question about 1993 GMC Jimmy
There are a number of sensors and controls that can cause this problem (mainly MAF, TPS, IAC motor, EGR valve, O2 sensor) and you will have to figure out which one (or more) is causing the problem. First check for error codes with an OBDI code checker and follow up on the results.
Posted on Nov 18, 2017
could be vgr valve or the brain box trying to go out vgr valve u can remove and scrape the carbon deposits off using a wired brush alot of times when it is the vgr valve thats all it is they vary rarely have to be replaced
Posted on Apr 28, 2009
Ignition coils has to be the answer. if it was the fuel pump your car wouldnt start. So i would say contact audi. they should have sent you a letter in the mail. We have the same car and i got a letter from them. ignition coils are the recall for the 02 a4.
Posted on Apr 08, 2010
If you have replaced the fuel filter this year, the next thing to check is fuel pressure with a gauge. GM vortec engines require 60psi or more to run.
If the check engine light is on you should also have the computer scanned for trouble codes.
Posted on Aug 23, 2012
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